MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external links, many hosted on compromised WordPress sites, suggesting a link farm or phishing lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbebdc13bb---linidumogotomure.pdf
- http://holycrossyouthministryasp.org/clients/f/fa/fa15eac34f6f8ef5a8ada011ffef1578/File/7636734613.pdf
- http://thietbiotoviet.com/Images_upload/files/vapepudojomapanuluvi.pdf
- http://szzxwx.com/Upload/Upload/file/202161033562513.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160849ad8e4683---78445365805.pdf
- http://plafondchauffant.fr//img/user/file/sulukitorekalaro.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/kub2ao46pt61ej67emglltcrad/88996227577.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/d2vit6ksfdlcqu18b9cutgk4s4/62806880260.pdf
- https://ceral.pl/ceral/pliki/file/jatesimomadedosigi.pdf
- https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/53936c5579b269b45caeb75ac13764cf/darusuminefajemikulevim.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609412b0bbd21---44157013066.pdf
- https://maplesservice.com/wp-content/plugins/super-forms/uploads/php/files/039f0754e64e1ae2e0672d1c262ce8a6/pixobeburig.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1e82dc884---kumadelirepugasowumigunib.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/tgoqj4flp0i2ae9n1saur6c3r6/63571974632.pdf
- https://alexandrapanayotou.com/web/images/static/file/siwogawolebonenodotenuruf.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7360e638f---wepidixexifamolerobowi.pdf
- http://riggi.ru/userfiles/file/poxefaxolozadimib.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f1206e132---peremijado.pdf
- https://damsindia.org/admin/uploads/file/8768042057.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/7f784e264c9a2fe5c61d28e92544e3e1/94119957496.pdf
- http://mini-garden.ru/userfiles/file/sapupetuvimoru.pdf
- http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/29173431896.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086f9c661da2---gutovapuzekowibamubafat.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/pfs5n33cm55301g18bil54un04/31926650224.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dd1c297d57---42019826132.pdf
- http://banglatalkies.com/dynamic-images/cms/file/pozabixojazavamoraxukufaw.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=definition+of+a+unic
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e30a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE30A | 16792 bytes |
font_01_sfnt_off0000fb1c.bind9bfc07fb9f77eec3008b454932dc38da78ef68d035481ca744ecbf388257857 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB1C | 17652 bytes |
font_02_sfnt_off0001291c.bindd7e61da9d9b7988d89f2164b30507b5d2d0dcc2bcb2765431f6ea8e315709a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1291C | 10116 bytes |
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